-In the Above Figure, What Might Have Shifted the Short-

Multiple Choice

-In the above figure, what might have shifted the short- run Phillips curve from SRPC₁ to SRPC₂ while leaving the long- run Phillips curve unchanged at LRPC?

A) People's inflationary expectations might have decreased.
B) People's inflationary expectations might have increased.
C) The natural unemployment rate might have increased.
D) The natural unemployment rate might have decreased.